Tree Register of the British Isles


A charity devoted to recording notable trees including those that are rare, very old, otherwise historically significant or the biggest of their species (champion trees), measured as height or main-stem diameter. TROBI is now more commonly known as the ‘Tree Register’ since there is also a Tree Register of Ireland maintained by the Tree Council of Ireland.

This definition is abridged from A – Z of tree terms: A companion to British arboriculture.
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